Ecological Archives E087-145-A5

David L. Kimbro and Edwin D. Grosholz. 2006. Disturbance influences oyster community richness and evenness, but not diversity. Ecology 87:2378–2388.

Appendix E. Variation in absolute abundance of the 10 most abundant mobile species. ANOVA means, lower limit (LL), upper limit (UL), F statistic (F), Mean square error (MSE), P values (P), and the response of the species with decreasing disturbance are presented. Lower and upper limits are based on means + standard error, unless noted otherwise.

Species

Disturbance treatment

F

MSE

P

 

Low (N = 8)

Intermediate (N = 9)

High (N = 8)

     
 

Mean

LL

UL

Mean

LL

UL

Mean

LL

UL

     

Laticorophium baconi

281

175.3

386.7

153

47.3

258.7

24.56

-75.1

124.2

13.1

0.25

0.0002

Zeuxo normani

46.75

34.5

59.0

28.25

16.0

40.5

4.11

-7.44

15.7

28.1

0.10

0.0001

Nebalia pugettensis

3.5

-2.41

9.41

3.75

-2.16

9.66

11.33

5.76

16.9

0.85

0.23

0.44

Paranthura elegans

29.88

19.33

40.4

9.5

-1.05

20.1

0.78

-9.17

10.7

19.3

0.15

0.0001

Postasterope barnesi

3.5

2.3

4.7

2.75

1.55

3.95

3.67

2.53

4.84

0.17

11.6

0.85

Odostomia sp.

25.38

15.63

35.1

9.88

0.13

19.6

0.0

-9.2

9.2

176.2

 

0.0001

Nemertean sp.

38.12

29

47.3

12.63

3.50

21.8

3.56

-5.05

12.16

19.5

0.11

0.0001

Exologone lourei

18.0

13.02

22.9

19.0

14.0

24.0

7.22

2.52

11.9

1.85

198.6

0.18

Cirratulus multiculatus

42.13

21.57

62.7

20.25

-0.31

40.8

0.11

-19.3

19.5

15.2

 

0.0005

Tethymyia aptena

38.5

32.7

44.3

14.75

8.99

20.5

6.89

1.46

12.3

8.46

265.8

0.002

 

Species

Response

Laticorophium baconi

Increase

Zeuxo normani

Increase

Nebalia pugettensis

No change

Paranthura elegans

Increase

Postasterope barnesi

No change

Odostomia sp.

Increase

Nemertean sp.

Increase

Exologone lourei

No change

Cirratulus multiculatus

Increase

Tethymyia aptena

Increase

† Log10 transformed. Data presented as means and 95 confidence intervals.

‡ Non-parametric Wilcoxon/Kruskal-Wallis Test using Chi Square test statistic. Data presented as means and 95% confidence intervals.



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